Clients

Central Office Lookup Tool

Find consumer and business lists by geography and telecommunications infrastructure using our Central Office Lookup Tool. Find out detailed information about specific Central Offices including location, consumer and business list counts, and the telecommunications companies and equipment hosted in that facility.

Find detailed information on over 35,000 Central Offices. Enter a CLLI code, NPA-NXX, zip code, or click on the name of a state to find the Central Office of interest.